SkyWater Technology's three largest insider shareholders as of March 23, 2026 are Oxbow Partners, Llc Cmi (Director, 21.96Mn shares), Loren A Unterseher (Director, 4.49Mn shares), Bart L Zibrowski (TenPercentOwner, 4.48Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Oxbow Partners, Llc Cmi | 21,960,324 | 0 | 19 Sep, 2022 | |
| Loren A Unterseher | 4,487,394 | 0 | 01 Dec, 2025 | |
| Bart L Zibrowski | 0 | 4,483,396 | 03 Aug, 2023 | |
| Developments, L.L.C. Ddk | 4,483,396 | 0 | 03 Aug, 2023 | |
| Loren A Unterseher | 0 | 651,818 | 17 Nov, 2025 | |
| Steven P. Wold | Chief Admin Officer | 639,091 | 0 | 22 Apr, 2021 |
| Thomas Sonderman | Ceo | 553,244 | 0 | 18 Mar, 2026 |
| Thomas Sonderman | Ceo | 515,990 | 0 | 19 Feb, 2026 |
| Thomas R. Lujan | 462,258 | 0 | 23 Jan, 2024 | |
| Bradley Ferguson | Chief Govt Affairs Officer | 443,805 | 0 | 15 Aug, 2023 |
| Mark Litecky | Chief Revenue Officer | 347,411 | 0 | 15 Aug, 2023 |
| Steve Manko | Cfo | 269,977 | 0 | 19 Feb, 2026 |
| Steve Manko | Cfo | 224,874 | 0 | 23 Mar, 2026 |
| Khoua Yang | Vp Of Finance | 168,322 | 0 | 22 Apr, 2021 |
| John Sakamoto | President And Coo | 141,395 | 0 | 17 Mar, 2026 |
| John Sakamoto | President And Coo | 120,174 | 0 | 19 Feb, 2026 |
| John Spicer | Evp Operations | 68,036 | 0 | 17 Mar, 2023 |
| Steve Kosier | Chief Technology Officer | 63,504 | 0 | 15 Aug, 2023 |
| Christopher Hilberg | Chief Risk Compl. Officer | 62,929 | 0 | 18 Mar, 2026 |
| Christopher Hilberg | Chief Risk Compl. Officer | 46,300 | 0 | 19 Feb, 2026 |
| Amanda Daniel | Chief People Officer | 43,699 | 0 | 15 Aug, 2023 |
| Nancy Fares | 43,501 | 0 | 23 May, 2025 | |
| Chunyi (Amy) Leong | 40,923 | 0 | 24 May, 2024 | |
| Edward Daly | 34,879 | 0 | 23 May, 2025 | |
| Joseph J Humke | 23,713 | 0 | 23 May, 2025 | |
| Tammy J Miller | 11,428 | 0 | 23 May, 2025 | |
| Andrew D.C. Lafrence | 11,428 | 0 | 23 May, 2025 | |
| Timothy E Baxter | 11,428 | 0 | 23 May, 2025 | |
| Wendi B. Carpenter | 10,537 | 0 | 22 Apr, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Mar, 2026 | Steve Manko | Common Stock | D | 71,693 | $27.84 | 224,874 | D | S |
| 16 Mar, 2026 | Thomas Sonderman | Common Stock | D | 13,201 | $27.86 | 553,244 | D | F |
| 16 Mar, 2026 | Steve Manko | Common Stock | D | 2,842 | $27.86 | 296,567 | D | F |
| 16 Mar, 2026 | Steve Manko | Common Stock | A | 9,708 | $10.14 | 306,275 | D | M |
| 16 Mar, 2026 | Christopher Hilberg | Common Stock | D | 1,317 | $27.86 | 62,929 | D | F |
| 16 Mar, 2026 | Steve Manko | Common Stock | D | 9,708 | $27.84 | 296,567 | D | S |
| 16 Mar, 2026 | Steve Manko | Common Stock | D | 81,401 | $27.84 | 215,166 | D | S |
| 16 Mar, 2026 | Steve Manko | Options to Acquire Common Stock | D | 9,708 | $0.00 | 19,416 | D | M |
| 15 Mar, 2026 | John Sakamoto | Common Stock | A | 21,221 | $0.00 | 141,395 | D | A |
| 15 Mar, 2026 | Christopher Hilberg | Common Stock | A | 17,946 | $0.00 | 64,246 | D | A |
| 15 Mar, 2026 | Thomas Sonderman | Common Stock | A | 50,455 | $0.00 | 566,445 | D | A |
| 15 Mar, 2026 | Steve Manko | Common Stock | A | 29,432 | $0.00 | 299,409 | D | A |
| 17 Feb, 2026 | Steve Manko | Common Stock | D | 7,145 | $28.77 | 269,977 | D | F |
| 17 Feb, 2026 | Christopher Hilberg | Common Stock | D | 3,571 | $28.77 | 46,300 | D | F |
| 17 Feb, 2026 | John Sakamoto | Common Stock | D | 8,539 | $28.77 | 120,174 | D | F |
| 17 Feb, 2026 | Thomas Sonderman | Common Stock | D | 5,767 | $28.77 | 515,990 | D | F |
| 17 Feb, 2026 | John Sakamoto | Common Stock | D | 8,539 | $28.77 | 120,174 | D | F |
| 17 Feb, 2026 | Steve Manko | Common Stock | D | 7,145 | $28.77 | 269,977 | D | F |
| 17 Feb, 2026 | Thomas Sonderman | Common Stock | D | 5,767 | $28.77 | 515,990 | D | F |
| 17 Feb, 2026 | Christopher Hilberg | Common Stock | D | 3,571 | $28.77 | 46,300 | D | F |